IS Mount - The GOAT Disc Brake Caliper Adapter

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A bigger rotor is the cheapest way to get more braking power. The GOAT Caliper Adapter lets you run one your frame or fork wasn’t originally set up for. For the maximum permitted s ize, adhere to the manufacturer’s specifications for the frame and fork; otherwise, you risk harm or even death. Why a bigger rotor More stopping power. Each step up in rotor size gives you roughly 12% more braking force. Going from 180mm to 203mm is the most common upgrade. Less fade on long descents. A bigger rotor sheds heat better. That is the real reason e-bikes and heavier setups run big rotors, and it is what you notice on a 20 minute descent. CNC-machined aluminum. Strong, corrosion resistant, and light enough that you will not feel the difference. IS to Post Mount. Mounts to IS (International Standard) frames and forks and takes a Post Mount caliper. Who it is for Riders whose brakes run out before their arms do. Steep terrain, bike park laps, e-bikes, or anyone carrying extra weight down long descents. If you are already on the biggest rotor your mount takes, an adapter is how you go bigger. Picking the right one Choose the adapter for the rotor size you want to end up with, front or rear. Our adapter guide walks through it. Fitting it Bolt the adapter onto your brake mount, fit your new rotor, and you are done. You will feel the difference on the first long descent. We stock rotors from 180mm to 223mm. 🐐 Show more